Connecting people to the natural world.
Connecting people to each other.
The Arctos School of Herbal and Botanical Studies offers classes in plant medicine, botanical identification, mushroom foraging, community herbalism, and more in and around Portland, Oregon.
Our bioregional approach to herbalism grows from our commitment to social justice.
We believe that empowered, caring communities are preventative medicine.
Our Philosophy
Our Story
Arctos School is Missy Rohs and a wide, wild community of students and alumni and guest instructors and friends in the Pacific Northwest and beyond.
The seeds of Arctos were planted in 2005 when Missy met Gradey Proctor while volunteering for Bark, an organization dedicated to protecting the Mt. Hood National Forest outside of Portland, Oregon.
Gradey and Missy quickly realized that they shared an intensely nerdy love of plants, with complimentary perspectives: that of an ecologist/botanist and an herbalist/healer. It didn’t take long for them to realize that they both enjoy teaching, too: At that point, Gradey was already moonlighting as a botany instructor, while Missy had been leading radical first aid and civil rights trainings for years.
Upcoming Workshops & Adventures
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Upcoming Workshops & Adventures ✿
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The plants that surround us are full of healing and nourishing properties, if we know where to look!
Join Missy for a seasonal stroll around the Hoyt Arboretum to explore the medicinal trees, weeds, and native plants we encounter. We’ll talk about which parts to use and which plants to avoid. You may even discover a new use for a plant you thought you knew well!
Class size is limited and pre-registration is required through Hoyt Arboretum. Registration closes about 24 hours before class, or when the class fills. Please direct registration questions to Hoyt Arboretum. Class will be held outdoors, rain or shine. Cost is $15 Hoyt Arboretum members/$20 non-members.
Some of Our Previous Workshops & Adventures
Edible and Medicinal Plants of the Conifer Forest Plant Walk
On this pay-what-you-can walk, we will wander the conifer woods of Powell Butte with Gradey Proctor to learn plant ID and ecology, as well as the edible and medicinal uses of the plants we encounter. Our hike will be approximately two miles, mostly in a fairly flat section of the park. Bring a curious mind and whatever you need for a leisurely stroll in the forest. Dress for the weather.
The Medicinal Bounty of Your Garden — a free herbalism class
In the Portland area, we are surrounded by a wealth of medicinal plants. Chances are that you’re already growing some in your garden! Missy will talk about some healing herbs that you likely see on a regular basis. We’ll cover when to harvest these plants, how to use them, and more!
Supporting Sleep & Relaxation with Herbs
Anxiety & stress got you wound up? Unable to ground & chill out? You’re not alone! Join Missy to learn about plants that can help you calm down and sleep soundly. We’ll talk about five different medicinal plants in depth, covering best preparations, finding the right dosage, & more. Students will be able to learn by tasting, and everyone will get written materials to take home.
The Arctos Herbal Immersion Program
Our 2027 Herbal Immersion offering will start with a six-week foundational section in late March and all of April. We will meet in person every Wednesday and Thursday from 10am-4pm. In this short, intensive course, we’ll build a solid understanding for a well-rounded herbalist: connection with the land that we live on through the lenses of botany and ethical wildcrafting; understanding of medicinal plant actions through organoleptics, phytoconstituents, and herbal energetics; hands-on experience with making tinctures and medicinal-strength preparations; and in-depth exploration of materia medica for digestion and other body systems.
Coming up for 2027, The Herbal Immersion Program will be offered in shorter segments. Full details coming October 20!
Our Instructors
Missy Rohs
Founder and Instructor
Missy Rohs is a community herbalist, a queer nature geek, and a co-founder of The Arctos School. She grows, scavenges, and wildcrafts her own herbs with a focus on sustainable herbal remedies: those that grow easily in populated habitats, and those that can be harvested in the wild with minimal impact or beneficial impact. Her ecological ethos drives a slightly over exuberant love of weeds.
Guest Instructor
Gradey Proctor
An ecologist and botanist, Gradey Proctor has spent years studying the flora and fungi of Oregon's forests. He fell hopelessly in love with the Northwest upon his arrival in the '90s. Through classes, volunteer work, and employment, Gradey dove into the world of plants head-on. His longing to develop a sense of place has driven his passion for sustainably harvesting medicinal and edible plants.
Click below to learn more about Missy, Gradey, and our many other guest instructors!
Frequently Asked Questions
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Absolutely! Our students in the HIP run the gamut from utter novice ("This is new and exciting territory!") to experienced health care practitioner ("I know my diagnostics, but I don't have a solid botanical materia medica") to seasoned naturalist ("I can identify these plants, but can they be used for anything?") to lifelong gardener ("Please just give me a reason to love these dandelions!"). We will tell you what we mean when we talk about infusions, tinctures, monoecious plants, and mucilaginous extracts. We're available for questions, and you'll find that your fellow students are also an amazing resource, too.
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Good question. The answer? A lot! Our approach to learning herbalism is special: With our hands-on medicine making, you’ll gain confidence to create your own high-quality remedies while building your apothecary. With our abundant time in the field, you’ll grow a familiarity with and connection to the Pacific Northwest ecologies that we live in. With our engaging approach to botany and mycology, you’ll come out of the program understanding how to identify plants and mushrooms using keys and how to recognize plant families. With our herbal-actions-based approach to learning about medicinal plants, you’ll gain a thorough understanding of the principles behind using particular herbs, and you’ll get the hang of how to formulate successfully. Our herbal games, plant walks, and interactive style all help with deepening and retaining the knowledge that you have. Our focus on sustainability and stewardship will help inform your own ethical lens.
Learn from at least a few different plant medicine lovers, and we guarantee that you'll be a better herbalist for it. We welcome intermediate students in our introductory classes, our Herbal Immersion Program, and our intermediate offerings.
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We’re not offering that this year, but we’re excited to do so in the future. If you have a group of intermediate herbalists who are ready to take this class, please reach out and we can craft a course and schedule that works for your cohort.
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There are a lot of herbalism schools in North America that boast about offering herbal certification. Herbalism is unlicensed and unregulated in the United States; there’s no legal certification or licensure for herbalists. We like to be transparent with our students about that! However, we offer a certificate of completion for our Herbal Immersion Program as a token of the time and effort that you’ve put into your studies. We’re proud of everyone who completes our program!
Alumni who want to use their herbal and botanical skills to get a job or to study with other schools are always welcome to ask us for a letter of reference. Our description of what our 250-hour course covers, and what your strengths were as a student, will inform people much better than a certificate could.
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Missy and Gradey started teaching together as Arctos in 2006, offering workshops and medicinal plant hikes. In 2007, the Herbalism & Ecosystems program, a joint venture between both Gradey and Missy, began. A decade later, Missy expanded that course to become the Herbal Immersion Program. Gradey remains teaching as a cherished part of the Herbal Immersion Program, but since 2023 has turned his primary focus to his Medicine Garden nursery.
Before we started the Arctos School, both of us had a fair amount of teaching, facilitating, and training under our belts.
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Arctos programs are about conveying pragmatic skills with the goals of connecting people with the land, connecting people with their community/ies, and improving community resilience. These pragmatic skills can be put to use in everyday life: ethical wildcrafting/weedcrafting for food and medicine; home medicine-making; cultivating plants and using weeds; practicing medic skills and using herbs for first aid. Our classes stress a sustainability-centered, reciprocity-based, thoughtful approach to harvesting wild plants and an enthusiastic endorsement of using common weeds as plant allies. We wear our beliefs on our sleeves, and we want to change the world. But we aren't the gatekeepers of transformational knowledge; we want to facilitate a collaborative process to create learning.
We encourage studying with different plant medicine teachers; an herbal education is never complete, and a broad base of knowledge benefits us all. Even learning the 'basics' of nettles or calendula with different instructors will, for attentive students, yield further knowledge and even greater questions. You’re welcome to study with us if you’ve already learned from other herbalists, and we support our alumni in furthering their learning at other herbalism schools — or in massage programs, aromatherapy apprenticeships, naturopathic colleges, and other connected-but-different modalities!
Collaborative, honest, and straightforward. We're here to guide the process, bring ideas to the table, and keep things moving.
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The interview is an informal one-on-one meeting. Don't worry about dressing up, preparing a résumé, or rehearsing a speech! I just want to outline the expectations of students, answer your questions about the program, and make sure that we're a good fit. Spoiler alert: Participation, attendance, and commitment are important.
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Arctos always encourages students to learn from each other. If you miss a class, please catch up on the material covered with another student in the program before the next time the class meets. That could look like: your classmate leading a plant walk for you; reading your classmate's notes; coming up with a Q&A session with your classmate; making medicine together; and more. This facilitates community-building between herbalism students and also enhances learning opportunities for those willing to pass along knowledge to fellow plant lovers. Missy will gladly answer any questions remaining after that connection, and is available for private tutorial sessions if needed (rates discounted for current students).
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We are always open to proposals for partial trade. If you or someone on your behalf has a professional skill or resources that you’d like to trade, please approach us with a specific proposal, and we will let you know if that is a service or item that we could use at this time. You’re welcome to pitch anything you have to offer: carpentry, bodywork, class rental space, housecleaning, CSA shares, graphic design, videography, raw honey, landscaping, vacation rental stays, etc. When we accept trade, it’s typically for 20-50% of the cost of a program, or up to full cost of a one-day offering, with the remainder paid with money.
As a tiny school, Arctos do not typically have work-study positions. If we are looking for a work-study student, it will be listed in the individual program description or posted on Arctos’s facebook page and instagram account.
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Arctos is a place-based school, centered in and around Portland, Oregon. Almost all of our teaching is in-person, both outdoors and indoors, because we personally cherish hands-on learning and face-to-face interaction. Harm-reduction protocols, such as outdoor classes, excellent indoor air filtration, and improved air circulation are employed for all classes. Masks are always welcome in Arctos classes, and up-to-date vaccinations for flu, covid, and other contagious illnesses are highly encouraged.
We recognize that online learning is a valuable tool as well. The pandemic inspired us to offer online classes, and occasionally we have offerings via zoom. When we meet online, our goals remain the same: To engage students in interactive, participatory, and experiential learning.
Our Customized Offerings
Private Workshops & Walks
Missy offers customized classes for individuals and groups. Topics can range from a backyard medicinal plant tour to how to make home remedies using healing herbs.
Health Consultations
Missy is available for health consultations by phone or in person. As a clinically trained herbalist, she looks for patterns of imbalance in each individual’s unique constitution and searches for root causes to health issues.
Group Field Trips
Botanical education hikes, foraging walks, and mushroom hunts are super fun! As with workshops, topics are highly customizable, and can range from novice-level to intermediate / advanced.
Contact Us
We are located in and around Portland, Oregon, on unceded Indigenous land. "The Portland Metro area rests on traditional village sites of the Multnomah, Wasco, Cowlitz, Kathlamet, Clackamas, Bands of Chinook, Tualatin, Kalapuya, Molalla, and many other tribes who made their homes along the Columbia River creating communities and summer encampments to harvest and use the plentiful natural resources of the area" (Portland Indian Leaders Roundtable, 2018).
For more information & to sign up for our offerings — please contact us below:

